1. Bluetooth Music Transmitter is a high-performance transmitter which enables your audio devices to transfer stereo audio wirelessly. Turn your regular stereo audio devices into a Bluetooth-enabled wireless streaming machine through 3.5mm audio-out jack. 2. Compatible seamless with Bluetooth music receiver and Bluetooth headset and Bluetooth speaker etc. 3. Bluetooth music transmitter connects directly to audio device with 3.5mm audio cable such as TV PC CD Player iPod Kindle Fire MP3 / MP4 etc. Up to 30 feet working range. 4. Music in the walk-man equipment-TV / MP3 / MP4 can be displayed wirelessly in the headset / earphone after the transmitter links with Bluetooth headset / earphone. 5. Small lightweight and durable! Take it with you and enjoy Bluetooth music anytime / anywhere for up to 7 hours! Can work while charging. 6. Energy saving capability: powers off automatically if pairing fails for over 10 minutes. Note: Bluetooth headset must support A2DP protocol to connect the Bluetooth transmitter.